78P2343JAT
3-port E3/DS3/STS-1 LIU
with Jitter Attenuator
PIN DESCRIPTION (continued)
RECEIVER PINS
NAME
PIN
TYPE
DESCRIPTION
Reference Clock Input:
This clock should be from a clean source (± 20 ppm) and match the
selected line-rate frequency as follows:
57
CIS
CKREF
E3 : 34.368 MHz
DS3: 44.736 MHz
STS-1: 51.840 MHz
Receive Clock:
Recovered receive clock output.
27, 35
43
CO
CO
RCLKx
RNEGx
NOTE: During LOS conditions, RCLKx will continue to output a line
rate clock
Receive Negative Data:
When ENDECB =’1’, this pin indicates reception of a negative AMI pulse
on the coax.
28, 36
44
When ENDECB =’0’, this pin outputs a one when a Receive Line
Code Violation (RLCV) is detected.
NOTE: During LOS conditions, RNEGx output is squelched
Receive Positive Data/NRZ Data:
When ENDECB =’1’, this pin indicates reception of a positive AMI pulse
on the coax cable.
29, 37
45
CO
RPOSx
When ENDECB =’0’, it outputs decoded NRZ data.
NOTE: During LOS conditions, RPOSx output is squelched
96, 90
83
LINPx
LINNx
Line In:
Differential AMI Inputs. Should be 1:1 transformer-coupled and
terminated with a shunt resistor. See APPLICATION INFORMATION
section for more info.
A
95, 89
82
Page 14 of 37
2005 Teridian Semiconductor Corporation
Rev 2.2
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
